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Are you having a laugh? from the info you have supplied I doubt an Electrician installed a 10500w electric shower on a 32A MCB. DO NOT PUT IN A 45A MCB - Get a qualified electrician to take a look at the circuit and complete remedial work as required.

So you are also unsure about how the cable is run it could be between some nice flammable material. Do yourself a favor and call in an electrician, the mcb tripping is your best friend at the moment.

9500/230 = 41.3 Amps 10500/230 = 45.6 Amps What size is your cable, that's your problem. You have also completed electrical work in a bathroom by installing the new shower not matching the existing. This is breaking the law and could be creating a danger to yourself and others. If...

Do you remember your power triangle and your diversity factor?

You could have tripped the RCD (if fitted) when installing the new socket.

We need more people like you. You do your trade - we do ours. You tend to find now that everyone knows someone who can do "lectrics" without really having the equipment and knowledge to complete and test an installation.

You could spur off from the the back of the socket with a switched fuse spur. you can then put the switched fuse spur near the shed door for ease or have it switching via a PIR or dawn to dusk. This way you are not wasting one of your 2 sockets. Just ensure that you correctly rate the fuse...

Hi. Why would you need to use a JB for a new install? I can't think of a reason but maybe someone could enlighten me.

or he could be using 3G :wink:

His laptop battery must have run out. Let us know what it turned out to be, always interested to know the outcome to store in my brain for future use.

totally correct its an offence to tamper with the equipment supplied by the network, this does include the service fuse.

This is why I have come to worship the lovely MCB. :D :D

I would use an inspection tee. I normally use metal conduit in my factory and always inspection tees for the drops that continue...

I work in a big old factory where all he boards are the MEM screw in cartridge type (black asbestos holders) all the circuits are unlabelled. If I have a fault on a circuit I have to start pulling lots of fuses without knowing what they are. Even the small arc when I put the fuse in startles...

I totally understand I just felt that it was not worth starting a debate in this thread that could make the OP think that pulling the service fuse is acceptable. There are certain safety aspects to follow when pulling the service fuse, I have seen some people wear PPE. Bottom terminals and...

The OP asked the legality of removing the service fuse - the question he asked has been answered correctly. Whether or not others do pull the service fuse is irrelevant and maybe something that people do not like to admit or talk about. Its prob not worth starting a debate in this thread...

You cannot remove the main service fuse yourself, you will need to contact the DNO - they may as well fit an isolator for future isolation. You can change the CU yourself if you are competent but you must notify your LABC prior to starting the works. You also have to pay their fee. They will...

It will come down to the fact that the cable whatever type needs adequate protection from environmental and mechanical damage. It will be the responsibility of the electrician installing the installation to make the decision depending on the location on what cable is selected and how and...

I have just spent £50 on 9 watt GU10 bulbs from screwfix from the well known manufacturer Sylvania Lighting. I have a house that 15 x 50w GU10s, if they were all on this would pull 750watts. If I had them all on now they would pull 135 watts. OK I won't have them all on at once but it...